Patents by Inventor Elena Rachkova

Elena Rachkova has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Filament with light-emitting semiconductor chips, lighting means and method of producing a filament
    Patent number: 10731797
    Abstract: A filament includes a multiplicity of light-emitting semiconductor chips, wherein the semiconductor chips are arranged on a carrier, the semiconductor chips being electrically contacted, a scattering structure is configured to scatter light of the light-emitting semiconductor chips, the scattering structure is formed by structuring a surface, a converter covers the light-emitting semiconductor chips, and the structuring of the surface is formed on a surface of the converter.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: August 4, 2020
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Thomas Schlereth, Elena Rachkova, Michael Bestele, Ivar Tangring
  • FILAMENT WITH LIGHT-EMITTING SEMICONDUCTOR CHIPS, LIGHTING MEANS AND METHOD OF PRODUCING A FILAMENT
    Publication number: 20190113181
    Abstract: A filament includes a multiplicity of light-emitting semiconductor chips, wherein the semiconductor chips are arranged on a carrier, the semiconductor chips being electrically contacted, a scattering structure is configured to scatter light of the light-emitting semiconductor chips, the scattering structure is formed by structuring a surface, a converter covers the light-emitting semiconductor chips, and the structuring of the surface is formed on a surface of the converter.
    Type: Application
    Filed: March 23, 2017
    Publication date: April 18, 2019
    Inventors: Thomas Schlereth, Elena Rachkova, Michael Bestele, Ivar Tangring